Matthew Mead-Briggs created MESOS-7886:
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Summary: Add master hook for setting environment variables
Key: MESOS-7886
URL: https://issues.apache.org/jira/browse/MESOS-7886
Project: Mesos
Issue Type: Improvement
Components: modules
Reporter: Matthew Mead-Briggs
At Yelp we're planning to integrate our secret store with our platform as a
service which runs on Mesos.
I was hoping to write a module to "inject" environment variables on the master
side but the necessary hook doesn't currently exist. Such a hook already exists
on the slave side. However, for this integration that would require me to give
all the agents access to the secret store and I'd much prefer to limit this to
the master side.
There is already a hook for adding labels:
https://github.com/apache/mesos/blob/72752fc6deb8ebcbfbd5448dc599ef3774339d31/include/mesos/hook.hpp#L44-L48
So it seems it should be pretty easy to add one for setting environment
variables too? I had a crack the other day but although I got my code to
compile something was not working at runtime (note: I'm not a C++ dev). Is
there any reason why we wouldn't want such a hook? If anyone can confirm that
it's a sane thing to add then I'd be happy to spend some time trying to get it
working (although I may need some help)!
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